You should not be mad, really. Blizzard is a business company. Use your brain and think: why would they nerf already a weak spec? Why would they brag abour the "Rework Of A Shadow Priest" the result of which gives no choice in pve talents and locks best things all shadowpriests ever asked for in pvp only?
Because somebody has to be a foot-sweeping carpet for a real paying customers: rogues, mages, hunters. Nothing personal, just business. Deal with it.